getASLBase(): match $dmiVersion with regex

If you reorder and group the currently known models by families and
hardware generations a pattern appears:

 'ThinkPad E420s'     => '\_SB.PCI0.LPCB.EC0.HKEY',

 'ThinkPad Edge E335' => '\_SB.PCI0.LPC0.EC0.HKEY',

 'ThinkPad Edge E430' => '\_SB.PCI0.LPCB.EC0.HKEY',
 'ThinkPad Edge E431' => '\_SB.PCI0.LPCB.EC0.HKEY',
 'ThinkPad Edge E530' => '\_SB.PCI0.LPCB.EC0.HKEY',

 'ThinkPad L430'      => '\_SB.PCI0.LPCB.H_EC.HKEY',
 'ThinkPad L530'      => '\_SB.PCI0.LPCB.H_EC.HKEY',

 'ThinkPad S420'      => '\_SB.PCI0.LPCB.EC0.HKEY',

 'ThinkPad S430'      => '\_SB.PCI0.LPCB.EC0.HKEY',
 'ThinkPad Edge S430' => '\_SB.PCI0.LPCB.EC0.HKEY',
 'ThinkPad S431'      => '\_SB.PCI0.LPCB.EC0.HKEY',
 'ThinkPad S3-S431'   => '\_SB.PCI0.LPCB.EC0.HKEY',

 'ThinkPad T430u'     => '\_SB.PCI0.LPCB.EC.HKEY',

 'ThinkPad X121e'     => '\_SB.PCI0.LPCB.EC.HKEY',

With some guesswork about the upcoming *4? generation one can
combine the pattern into just a few regular expressions.

I think this may reduce the number of issues to add single models
significantly.
$aslBases: correct typo in ThinkPad X1[23][01]e
Pick up teleshoes' regexp comments/suggestions from the pull request.
whitespace
added aslbase for E530c
 support ThinkPad E420
Merge pull request #32 from aslmaswd/master

Add support for ThinkPad E420
add support for edge e330, resolves issue #33
Merge pull request #35 from HarnoRanaivo/e330

add support for edge e330, resolves issue #33
A simple loop over all known ASLBases in acpiCall() replaces
ASLBase detection via DMI product_version hash table.

Works for all ThinkPad models and eliminates the need to change the
hash table for every new model.
Merge remote-tracking branch 'upstream/master' into tlp.

Conflicts:
	tpacpi-bat
install: depmod + modprobe after installing acpi_call module
Merge pull request #36 from linrunner/tlp

Auto detect ASLBase